Regeneration. All trolls regenerate 1d6 HEALTH at the start of their turn. Trolls can be reduced to less than zero HEALTH, but their regeneration power continues, and they wake up again when their HEALTH rises above zero. If dismembered, the troll still regenerates from the largest of the remaining body parts.

Turned to stone. If trolls are exposed to sunlight, they immediately turn to stone. This is the only way to permanently kill a troll.

Knockback. On a successul hit, the target is knocked 1 square plus one square for each size category the troll exceeds the target (so a medium-sized creature is pushed 3 squares).